Question

square tiles of side 20cm are to be laid on the floor of a room 10m by 4.5m .how many tiles will be needed ?find the cost of putting the tiles at ₹ 131.40 per tile.

Answer 1

Number of tiles = ar.(floor) / ar. (tile)
= 45m²/ 0.04m²
= 1125
cost = no. of tiles ✖ rate
= 1125 ✖ 131.40
= 147825